Automatic oiling device for rub-aprons



w.1. KEHwm, 1R. AUTOMATIC OILING DEVICE FOR RUB APRONS.

APPLICATION FILED MAY 4| 1920.

1,370,972 Patend Mar. 8, 1921-L I 2 l Q `\b o I;

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j UNITED STATES PATENT OFFICE.

AUTOMATIC ILING DEVICE FOR RUB-APRONS. I

Specification of Letters Patent.

Application mea may 4, 1920. serial No. 378,889.

To all 'whom t may concern: y

Be it known that I, WILLIAM J. KERWTN, Jr., a citizen of the United States, and residing at New Bedford, Bristol county, State of Massachusetts, have invented certain new and useful Improvements in Automatic Oiling Devices for Rub-Aprons, of which the following is a specification.

This invention relates' to oiling devices for leather belts or aprons such as for rub aprons on wool, shodd or cotton waste card condensers. It em odies automatic means vfor constantly applying to the surface of the moving belt or apron the proper amount of oil properly distributed to keep it in good condition and soft and pliable, thus' contributin to its eiciency and lasting qualities. T e vnovel features will be apparent from the following description taken in connection with the drawings in which:

Figure 1 is a side view of my oilingV device partly in section in place beneath' the apron of a card condenser; and A Fig. 2 is a cross sectionon the line 2 2 of Fig. 1;

Since the construction and arrangement of card condensers are well known and will be understood by those skilled in the art, I have in the present drawings shown only one pair of rollers 10 and 11 carrying t'he apron 12, and have not considered it necessary to show the additional rollers and belts which cooperate therewith. It will be seen by reference to Fig. 2 that I place my oiling device beneath a belt between the rollers extending transversely of the movement of the belt or apron. In the form shown there are brackets 13, 14 secured to any suitable supports 15, 16, and it will be understood that these may be a part of the frame of the machine, if desired. The brackets 13, 14 carry additional brackets 17, 18, and these brackets have bottom ledges 19, 20 which support a trough 21 adapted to contain oil. The brackets 17, 18 have bearings for the ends of the parallel shafts 22, 23. The shaft 22 has an enlarged cylindrical roll 24, the upper surface of which is parallel to but slightly removed from the apron 12 which is to be oiled. The cylindrical roll 24 has on it and extending semicircularly about it a number of projecting cams 25 and it will be noted that these cams are arranged in staggered relation, separated laterally but partly overlapping longitudinally, and form practically a spiral row around the cylindrical roll 24. IV preferably place on these cams a covering or coating 26 which will absorb and carry oil, such as leather or wool, and these oil carrying coatings or the cams themselves will come in contact with the under surface of the apron 12, although the vsurface of the roll 24 will not.

.The shaftV 23 carries a cylindrical/roll 27 which is preferably larger than the roll 24 and while its upper surface is parallelV with the surface of the roll 24 it is so separated that there will be no contact even with the cams carried by the roll. The cylindrical roll'27 however, has secured to its surface a projecting oil carrying member 28 which may be made of leather or wool or-other material to absorb oil Aand which as shown extends spirally around the roll 27. This spiral oil carrying member 28 makes contact with the cams or the cam covers on the roll 24, thus transferring tothose cam covers partof the Voil which the member 28 carries. The shaft 23 fits in stuing boxes 29, 30, at the ends of the oil trough 21. The shafts 22 and 23 are connected to rotate together by intermeshing gears 31, 32, but

these gearsshould not be of the same dif' ameter orV have the same number'of teeth.-

I prefer to make the gear 31 with twentyeight teeth and the gear 32 with thirty teeth. The'result of this is, of course, to make the two rolls 24 and 27 travel at different speeds, and also that the oil carrier 28 and the cam 4surfaces have a wiping action. Furthermore, those cams which do not strike the oil carrier 28 o'n one revolution will do so later on at some other revolution of the rolls. The rolls' may be driven in any suitable way, for instance, by means of the sprocket wheel 33 which may receive.

its power from the same source that drives the card condenser, or from some other source. It will be observed that the oil 34 inthe oil trough 21 does not extend up to the shaft 23 but that a part of the cylindrical roll 27 is submerged in it so as to make the oil carrying member 28 carry up the right amount of oil at each revolution.

It will, of course, be understood that the oiling device will be in operation as the apron of the card condenser is moving and the roll 27 through the part 28 will continuously pick up small quantities of oil and by the rubbing action oil the covers on the cams 25, thus those cams will in turn rub over the surface of the apron 12 and Patented Mar. e, 19e l..

i transfer the oil tothe apron. .In practice f l. In a device v of the rolls are run at a slow rate of speed and I find -that this construction properly distributes the oil and keeps the beltor apron in good shape. Itwill, of course, be understood that the amount of oil can be regulated somewhat by the speed and `also by the amount and character of the covering on the cams. 1 1

Having thus described my invention-what l claim as new and desire to secure by Letters Patent is: f Y i Y .the class described, the combination with a rollor cylinder having on its periphery means for carrying distributed and regulated `quantities of oil and adapted to make, contact Vwith a beltV or ,I apron to be oiled,.of means for rotating said cylinder independently of said belt orapron torbringthe oil carrying means in Contact with Vthe belt or apron, andmeansffor automatically supplying oil to said Oilcarrying means during the rotationiof saidcylinder.

2.In.a device-,of the class described, the

combination'.with.a.roll or cylinder adapted.

tobe placed underA the belt to be oiled having on its outer surface at intervalsproject'- ing portions adapted to carry oil in limited quantities and tomake contact with the belt, a secondroll or cylinder below the first carf rying on a part or" its surface longitudinally,

means :for absorbing and carryingoil makfj ing Contact with the projections on the first cylinder, means for supplying oil to saidf oil carrying means. on` said second cylinder, and means orrotating said cylinders fat different speeds. j

3. In a device moving belts or aprons, the combination with a` cylindrical rolladapted to beVV placed below the beltrhaving projections on its sur-A face at intervalsk and .in staggered relation? adapted to make `contactlat the 'topp withthe under surface of the belt. Va. secondcylin-v drical roll below and parallelto said lirst roll having on its surface a spirally arranged projection adapted to carry oil and to make contact atintervals with the pro-vr jections on said first roll, a trough ,containsl ing oil surrounding the lowerjporti'on of said second roll andL inlwhich said roll is partially submerged,I andA means for slowly Y rotating said rolls at differentspeeds.v

4; In a devicevfor automatically oiling moving belts or aprons,Y the combination with a cylindrical rolladapted to beiplaeed for automatically oiling` below the belt separateV staggered Y 4cam shaped projections thereon at intervals f adaptedto make wiping contact at the top of the roll with the under surface of the belt, a'secondcylindrical roll below and parallel to'said first roll havingr projecting i from-its surface a spiral'shapedoil carrier adapted to make contact with said cams, an

oil trough having end bushings for the covered with oil V absorbing material suchas leather or wool, adapted to make wiping p Contact at the top Ioli the roll with the un# der Surface @faire beit, @Second Cynndnczar roll below and -parallel Ato said iirst roll hav!V` ing projecting from 'its surface a spiral vshaped 'oi-l. carrier composed of oil absorbingv material'such as ,leather or wool adapt! ed to make contact ,with Vsaid cams, an oil trough having end bushings fori the Vshaft of said Vsecond roll and forpartly submergl ingsaid rollin oil, and Vmeans orrotatively supporting saidfrollsvin proper relation and :torYV driving them `at''diiferent speeds in opposite directions.

' 6. In. a Ydevice moving belts Vor aprons, the combination Vwith end supports of two 'parallel 4cylindri-Q cal separa-ted rolls one above'the. other having rotary bearings in said endv supports, gear connections between said rolls for causingV them to, turn at diiierent speeds, an oil troughcarried by said supports below said `bottom roll and in which it is Vpartially submerged and which is provided with end bushings, oil carrying projections on said upper roll at intervals adapted to wipe over the under surface ot' a belt traveling above it, oil carrying means 'projecting .from a portion of said second roll throughout its length and adapted to make contact with and leave oil on the projections on said first roll at intervals, and meansfor driving saidy rolls., I Y Y u Y ,Y y In testimony whereof I ailiX my signature.V

WILLIAM J; KERWIN, JR.

orautomatically foiling ioo 

